Messente avatar logo

Why some messages do not get delivered

- 5 MIN READ - 06 Nov 2012

TOP 5 reasons, why SMS or text messages fail to get delivered.

When you call your friend and the phone is switched off or out of carrier’s reach, you know that instantly.

With SMS, it is much-much more complicated, as most of the heavy-lifting is done without you knowing it.

1) Phone is switched off or out of carriers reach

If you get busy signal while calling, you can try again later or just give up. When the SMS does not get delivered on the first try, it is automatically re-sent in certain intervals without you knowing it. So when the phone is available again, the message still gets delivered.

Note: Messente.com is configured to try to deliver messages in 6 hours. When the message still fails, it is marked as Failed.

2) False negative

Sending SMS requires to also receive Delivery report (DLR) from carrier or operator. When the operator fails to respond with correct receipt, sender does not know, that the message actually got delivered and marks it as Failed.

NB! USA, Canada and most Latin-American countries are known not to provide delivery reports at all.

3) Number is in roaming (abroad)

Sending an SMS to number that is currently not in home-country, is always causing lots of problems and therefore delivery to numbers in roaming is not guaranteed.

4) Sender you are using is prohibited

Some countries or operators are blocking some types of Senders. Japan for example does not allow to send SMS from regular phone number. Telia Sonera in Finland on the other hand is blocking  messages from Alphanumeric senders like “CarService1″ or “BestHotel”…

5) Carrier is blocking the SMS

Operators are also known to block some SMS routes from time to time. This also requires SMS services to re-route the message via another working route and this also can cause temporary delivery issues.

Jaanus Rõõmus

Jaanus Rõõmus - CTO

Jaanus is co-founder and CTO of Messente and makes sure its wheels keep spinning and Messente always has a full tank of fuel.

How we help with the regulations of global messaging

26 Jun 2017

Forgoing the need to integrate network operators everywhere you need messages delivered is one of the main advantages of using a global messaging platform. Each connection includes legalities, which includes reviewing several agreements and negotiating terms, and technical tasks, like setting up the connections. So, a single company going through this process on their own would invest a lot of time doing things that have already been done by a messaging platform. Also, the company would end up with higher pricing from network operators, as it has much less traffic.

Lauri Kinkar

Lauri Kinkar

Your sales lab time is scarce

20 Jun 2017

In the series about sales research, I touched upon allocating about 30% of your research time on finding new ideas and possibilities around sales tactics. But how do you actually do it and what do you look for?

Uku Tomikas

Uku Tomikas

An open letter to financial institutions from Yuriy

09 Jun 2017

To the bank, credit card company, and investment firm I work with: I trust you. I really do.

If I didn’t, I wouldn’t put my hard-earned money in your hands. While I’m not a Certified Financial Analyst, I am financially savvy, so I understand that we have a mutually beneficial relationship. From a high-level, banks use the money I deposit to sell loans and invest in other financial instruments. Credit card companies make money on interest charges, other fees, and transaction fees from merchants. The brokerage firm makes money through fees on my account. On the other hand, all I expect is that you are honest about your services, provide returns, and keep my money safe.

Yuriy Mikitchenko

Yuriy Mikitchenko

Start sending messages to

for € N/A

Contact us